Electric chemical vaporizer



P 1929- E. M. ZURBRIGG 1,728,885

ELECTRIC CHEMICAL VAPORI ZER 2 Sheets-Sheet 1 Filed Nov. 9, 1925 [12 Vezz tor,

p 1929- E. M. ZURBRIGG ELECTRIC CHEMICAL'VAPORIZER Filed fiov. 9, 1925 2 Sheets-Sheet 2 fzzven for, z h/al. My

Patented Sept. 17, 1929 UNITED STATES ETHEL MAE ZURBRIGG, OF TORONTO, ONTARIO, CANADA ELECTRIC OHEHIICAL VAPORIZER Application filed November 9, 1925.

The invention relates to improvements in electric chemical Vaporizers as described in the present specification an d. illustrated in the accompanying drawings that form a part of the same.

One object of the invention is to provide a vaporizer which may be used as a unit in itself, or simply as a means of injecting chemical fumes, or vapor, into a cabinet bath.

A further obj cct is to provide means wher by the vapor may be directed into two or more distributors for the treatment of a corre sponding number of patients simultaneously.

A still further object is to provide for the automatic breaking of the electrical circuit to the element upon the total evaporati' n of the water in the boiler.

And generally the objects of the invention are to provide a chemical vaporizer which may be manufactured at a low cost and which will be efficient in operation and safe.

The invention consists in certain novel features in construction, arrangements and combinations as will be more fully and particularly pointed out hereinafter.

In the drawings Figure 1 is a diagrammatic view in perspective showing the vaporizer and a portion of the cabinet, parts of the de vice being broken away to disclose the interior.

Figure 2 is a perspective view of the electric heating element.

Figure '3 is a perspective view of a modified form of vaporizer, a portion of the supporting frame being broken away.

Like numerals of reference indicate corresponding parts in the various figures.

Referring to the drawings A represents a boiler, which is preferably constructed in three sections, the lower, or base section, being adapted to contain the water, or other liquid, to be boiled and being constructed of material which is a non-conductor of electrical current, the intermediate section 2 being a hollow cylinder supported on the flanged top edge 3 of the water receptacle 1, and also being constructed of insulating material, and the top section 4 being a substantially dome like closure 5 having a portion thereof offset at right angles and providing a horizontal outlet 6.

Serial No. 67,863.

7 is an electric element consisting of two sets of metal plates 7 and 7 of opposite polarity, supported free of engagement with one another from a. bridge 8 mounted transversely within the intermediate section 2, said element depending downwardly into the liquid receptacle and when properly electrified through the medium of the plug 9, suitably connected to the source of electric energy being adapted to boil said water to generate steam.

10 is a compartment supported within the intermediate section 2 and having marginal communication with the steam generator loned therebelow, said compartment being for the reception of the fume generating material 11, such as a mineral, or any desired chemical, which is to be vaporized through the a ction of the steam from the water in the receptacle 1.

"While it is desirable that access may be readily had to the sections 1, 2 and 4 in order to replenish the supply of liquid, or fume generating material, still. it is essential that said sections be securely locked together against accidental displacement of said sections, and for this purpose a base 12 is provided on which the receptacle, or base section 1, is adapted to sit and a stirrup 13, pivoted thereto at each of its ends as at 14 and adapted to be swung over the vaporizer and securely locked to the dome shaped top 5 by means of a screw 15 extending through said stirrup and adapted to be screwed into a threaded opening in an extension 16 from said top, is provided, thus clamping the whole device securely to said base.

The base 12 is preferably provided with guide blocks. or locators, 16 to insure the proper positioning of the vaporizer on the base.

17 is a sub-base on which the base 12 is slidabl mounted in the opposedguide flanges 18.

19 is one wall of-a cabinet bath which is provided with a flanged inlet 20 located on the same vertical plane as the vapor outlet 6 so that said outlet and inlet may be brought into register by simply sliding the vaporizer towards the cabinet the required distance.

21 is an electric receptacle carried on the wall 19 in the same vertical plane as the plug 9 so as to effect the electrical connection simultaneously with the registering oi? the outlet 6 with the inlet 20, said receptacle being suitably connected in the electric circuit and being controlled by a switch 21, also positioned on said wall.

In the operation of the vaporizer hereinbe- :tore described the receptacles 1 and 10 are first supplied with the required complement of liquid and fume generating material respectively and the sections assembled and locked together by means of the stirrup 13 and the vaporizer is moved to the proper position in relation to the cabinet wall 19 to bring the outlet 6 and the plug 9 into operative engagement with the inlet 20 and the receptacle 21 respectively, thus completing the electric circuit and causing the water or other liquid to be boiled, the steam thereitrom causing the emission of fumes from the material in the receptacle 10. These fumes rise up wardly in the vaporizer and escape through the outlet 6 into the cabinet in which the patient is located.

In Figure 8 a modified form of construction is shown in which a vertical wall 22 is extended upwardly from the sub-base 17, towards and away from which the vaporizer is adapted to be operated between the guide flanges 18, said wall being provided with an opening 23 in alignment with the outlet (3 and on the side thereof opposite to that on which the vaporizer is mounted carrying a vapor distributing chest, or compartment, 2% having outlet fines 25, to any or all of which may be connected suitable eon cot-ions leading to different cabinets. The outlets 25 not required may be closed by means of caps 26.

The electric connection in the modified device shown in Figure 8 is made by means of the plug 9 engaging a receptacle 27 carried by the wall 22, said receptacle carrying a cord 28 and plug 29 adapted to be connected up to any suitable source of supply.

The wall 22 is preferably provided at its top end with a hand grip 30 to facilitate moving the vaporizer from one place to another.

It will have been apparent from the foregoing that solong as the electric connection between the elements 9 and 21 are intact and there is conducting liquid in the receptacle 1 steam will be generated but immediately ipon evaporization of said liquid the electric circuit through the element 7 will be broken, owing to the fact that said liquid being a conductor provides the resistance necessary to electrically connect the plates 7" and 7 thus making it impossible to overheat the element.

Vhile it is possible to collapse the stirrup 18 when the vaporizer is in operative engagement with the cabinet wall it is absolutely impossible to gain access to the interior of the vaporizer without withdrawing the vaporizer from its connection with said cabinet, consequently breaking the electric circuit and thus elin'iinating all possibility of contact with the electric element while the circuit is closed.

What I claim is 1. In an electric chemical vaporizer, a water receptacle constructed of non-conductive material, a steam conducting element supported by said water receptacle and provided with a horizontally disposed outlet, an electric element carried by said steam conductijr element and operating in said water receptacle to boil the water therein. an electric plug having connection with said element, means for suspending the chemical. to be vaporized in said steam conducting element, a base, and a locking stirrup.

In an electric chemical vaporizer, a steam generator comprising a plurality ot intercomunmicating sections in superposed relation. to one another, a base supporting said sections, a stirrup pivotally mounted on said base and adapted to be swung over said generator and detachably locked to the uppermost section thereof, a sub-base supporting said base, said generator being provided with a vapor outlet and an electric plug in vertical alignment, said base being slidable on said sul -base, an electric element positioned within said generator and connected to said plug, and means for suspending fume generating material between said element and said out let.

Signed at the city of Toronto, Ont, this 17th day of October, 1925.

ETI-IEL MAE ZURBRIGG.

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